Phonograph turn-table.



J. P. LEACH.

PHONOGRAPH TURN TABLE.

APPLICATION FILED SEPT-20,1916.

Pat ented Jan. 30, 1917.

15 1? fizz/$72227" Application filed September 20,1918.

To a'ZZ whom '55 may 6071mm;

Be it known shat-I, JOHN BEACH, a

citizen of the Unite States, residing at Chi' cago, in she county 0" Cook and State of Illinois, have invenae certain new m1 use ful impiovemeuts in Phonogi-aph Turn-Tor nies, of which the foiiowing is a specification.

My invention relates to improvements in inducing instruments and more part1 so a disk-recoici supporting p i cuiieii a 'filiIi-tflbifi which is u iypes of toiling machines in W feriike disk-recorcis- "mciiincs Wiio w ii i i J u sn-Labie is carried on '71? some! en of a vertical driving spimiie one]; iessed szeei or coat ine cs the i e with the soio object of providisg a record support and drive,

he o'o'ect of my invention is io provide :1 turn-cable to be used in place of the table furnished by the manufacturer which will enhance and. enrich "size tones of the sounds seduced by the instrument and T8- produce with greater fidelity the tones of she instrument, 01' voices origimiiiy z'ecorded upon disks.

Another o bjiecii of my invention is the provisiono'f such turn-table having greater resonan e than those now in use which wiii respond to the vibrations caused in the reproducing diaphragm by the styius fol-- iowing the irsegeiarities in size grooves of recon}, thus augmenting or increasing the w-oiume sound producai by the instrument.

A still further object of the invention is the, provision of a turn-fable which will genei-aiiy improve m qualities of the so omis and; make them more pleasing to the ears of s. listener.

Still other anci further objects will. become apparent to those skiiieci in size ai't from 3b consideration of. the following descviptioi i and mwing, wherein?- Figui'e 1 is plan View of my improved turn-tabie \in parts broken away so iiiuscsite structure. Fig, ES

side elevation with broken away on e diametricsi Fig. 1s a fragmentary sessions: View iiiusni'amiig; mociifieci form Specification of Letters Eatent.

of the invention these openin ficrisi 330. 121,189.

iliustruteu m" in pi ,fci'reu form, a metallic disk i; this pmticuim. taper core 12 of on (irii'e spin '1 hub construcilion obvioii for mountinr the formed. spinuies cine! The upper surface of which preferably is of fiat, whereas, 1

Q1 "'ii h t the no ii upon the metallic have wooden (15 k io one? i5, 0; wood having good resonant a; Gisks are iiiiimeieiy united piste ov fiims i? of ine upper disk 15 is of eq oi Lie" 1 ouo, extending" ciose 50 plate, Whereas the ice at its peripheral portion nuiar flange 14: of the pi therefor coveiing enti metal piste except layer of feit 15 disk to pro 'cic which to piece the A plurality of hoie the metallic pie" intimsteiy connecce i.

is are ilie i. with a compositlon if} of moi. glue acting as a binciei' to aid in cementing the wooden disks in piece ami the some time intimately connecting them with W00i81 medium,

In the mociifiezi form. of construction iiiusloo tmteci in Fig". 3, "i have shown the openings 18 as being filied with wooden plugs 19 which serve he some pu'sgfiose the saw dust fiiiei's, {owning iiowever, a somewhat more rigici connection between "N661 disks, nough oo' 'ousiy creseuting so whee g u-eater iiifiicuifiies feom wring siendpoin.

6-3 0 explain some oz e imiorovemcnb wince I have made, though it may be that other theories and reasons Will more accurately account for the very noticeable improvement in the reproduction of sound accomplished by the use of my invention.

Whereas I have illustrated and described my improved structure in What I now consider to be a preferred form, together With a possible modification, it is to be understood that many changes and modifications may be made Without, however, departing from the spirit of the invention or the scope of the appended claims,

Having described my invention, What I claim is 1. A turn-table for talking machines comprising the combination with a metallic plate, of a pair of thin Wooden disks mounted on its upper and lower surfaces and in,

intimate contact therewith.

2. A turn-table for talking machines comprising the combination with a metallic disk having aplurality of openings therein of a pair of thin Wooden disks mounted on the upper and lower surfaces thereof, and

a Wooden connector filling said openings and joining the Wooden disks.

.3. A. turn-table for talking machines comprising the combination With a metallic disk having a plurality of openings therein,

of a pair of thin Wooden disks mounted on the upper and lower surfaces thereof, and a composition of comminuted wood with a binder filling said openings and joining the Wooden disks.

4. A turn-table for talking machines comprising the combination With a relatively thick metallic disk having a plurality of openings therein of a pair relatively thin fibrous disks mounted on the upper and lower surfaces hereof, and a composition of fibrous partit es and a binder filling said openings and jonling the fibrous disks.

In testimony whereof I hereunto set my hand in the presence of two subscribing witnesses.

JOHN P. LEACH. In-the presence of- STANLEY W. COOK, MARY Y. ALLEN. 

